SSBP4 and psoriasis: We also identified five novel psoriasis risk genes, methionine sulfoxide reductase A, elongation factor for RNA polymerase II (ELL), Myotubularin Related Protein 9 (MTMR9), leucine-rich repeat containing 25 (LRRC25), and single-stranded-DNA-binding protein 4 (SSBP4), among 26 genes.